U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

US Patent Application 20080088545 - AMOLED PANEL DISPLAY SYSTEM WITH TEMPERATURE REGULATION AND CONTROLLING METHOD THEREOF

Application 20080088545 Filed on August 30, 2007. Published on April 17, 2008

Inventors

Assignee

US Class

345/76Electroluminescent

Attorney, Agent or Firm

Foreign Documents

  • 95137292 TW 10/11/2006

International Class

G09G 3/30


Claims


1. A flat panel display, comprising:an active matrix organic light emitting diode (AMOLED) panel having a plurality of pixel units arranged in an array;a temperature sensor for measuring a temperature of the AMOLED panel; anda feedback control circuit for adjusting a driving current of the AMOLED panel according to a temperature measured by the temperature sensor so that the driving current of the AMOLED panel is inversely proportional to the temperature.

2. The flat panel display of claim 1, wherein each pixel unit comprises:a first transistor having a source terminal for receiving a data voltage and a gate terminal for receiving a scan signal;a second transistor having a source terminal coupled to a working voltage and a gate terminal coupled to a drain terminal of the first transistor and coupled to the source terminal of the second transistor through a capacitor; andan organic light emitting diode having an anode coupled to a drain terminal of the second transistor and a cathode coupled to a common voltage.

3. The flat panel display of claim 2, wherein the first transistor and the second transistor comprises NMOS transistors or PMOS transistors.

4. The flat panel display of claim 2, wherein the feedback control circuit adjusts the working voltage to control the driving current according to the temperature measured by the temperature sensor.

5. The flat panel display of claim 2, wherein the feedback control circuit adjusts the data voltage to control the driving current according to the temperature measured by the temperature sensor.

6. The flat panel display of claim 2, wherein the common voltage has a ground potential.

7. The flat panel display of claim 2 wherein the feedback control circuit adjusts the common voltage to control the driving current according to the temperature measured by the temperature sensor.

8. A method of controlling an active matrix organic light emitting diode (AMOLED) panel, comprising:measuring a temperature of at least a portion of an area of the AMOLED panel to generate a resulting measurement, andadjusting a driving current of the AMOLED panel according to the resulting measurement such that the driving current of the AMOLED panel is inversely proportional to the temperature of the measured area.

9. The method of controlling the AMOLED panel of claim 8, wherein the step of adjusting the driving current of the AMOLED panel comprises adjusting a working voltage of the AMOLED panel so that the driving current of the AMOLED panel is inversely proportional to the temperature of the measured area.

10. The method of controlling the AMOLED panel of claim 8, wherein the step of adjusting the driving current of the AMOLED panel comprises adjusting a data voltage for driving the AMOLED panel so that the driving current of the AMOLED panel is inversely proportional to the temperature of the measured area.

11. The method of controlling the AMOLED panel of claim 8, wherein the step of adjusting the driving current of the AMOLED panel comprises adjusting a common voltage for driving the AMOLED panel so that the driving current of the AMOLED panel is inversely proportional to the temperature of the measured area.

PatentsPlus Images
Enhanced PDF formats
loading...
PatentsPlus: add to cart
PatentsPlus: add to cartSearch-enhanced full patent PDF image
$9.95more info
 
Sign InRegister
Username  
Password   
forgot password?